8. Electric vehicles make up a very small proportion of the overall car market, but by how much has that proportion increased? I
ndependent surveys of randomly selected car dealerships were completed, with 0.1% of the 10,000 cars sold in the 2012 sample being electric vehicles, and 0.5% percent of the 20,000 cars in the 2016 sample being electric vehicles. Which of the following represents a 95% confidence interval for the change in the proportion of electric cars sold from 2012 to 2016?
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